<!DOCTYPE html>
<html>
<head>
	<title>Same-Origin Iframe</title>
</head>
<body style="padding: 10px; background: #fff;">
	<h3>Same-Origin Iframe Content</h3>
	<button id="iframe-btn">Iframe Button</button>
	<input type="text" id="iframe-input" placeholder="Iframe input" />

	<script>
		// When button is clicked, increment counter in parent page using addEventListener
		document.getElementById('iframe-btn').addEventListener('click', function() {
			if (window.parent && window.parent !== window) {
				// Call parent's incrementCounter function
				window.parent.incrementCounter('Same-Origin Iframe');
			}
		});
	</script>
</body>
</html>
